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Volumn 111, Issue 11, 2007, Pages 2999-3009

How do size-expanded DNA nucleobases enhance duplex stability? Computational analysis of the hydrogen-bonding and stacking ability of xDNA bases

Author keywords

[No Author keywords available]

Indexed keywords

BENZENE; BINDING SITES; HYDROGEN BONDS; MATHEMATICAL MODELS; NATURAL SCIENCES COMPUTING;

EID: 34047248888     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0670079     Document Type: Article
Times cited : (34)

References (98)
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    • Kool's original xC does, but xT does not, contain a methyl group. In the present study, we chose to include the methyl group in xT and neglect the methyl group from xC for consistency with the natural nucleobases.
    • Kool's original xC does, but xT does not, contain a methyl group. In the present study, we chose to include the methyl group in xT and neglect the methyl group from xC for consistency with the natural nucleobases.
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    • We considered larger separation distances for the best angle of rotation found from the scans and only the xT:xT dimer was found to very slightly (0.1 kj mol-1) prefer a vertical separation distance of 3.4 Å
    • -1) prefer a vertical separation distance of 3.4 Å.
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    • 2 sequences considered were ATCG, ATTA, and GCGC where slightly larger deviations were found for the guanine-cytosine interactions.
    • 2 sequences considered were ATCG, ATTA, and GCGC where slightly larger deviations were found for the guanine-cytosine interactions.
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    • -1) in stacking interactions that should be the same (i.e., two intrastrand T:xA interactions in (TxA):(xAT) sequence). These differences likely arise because of slight errors in our method for finding the center of the base pairs. Since none of the differences are significant enough to detract from our main conclusions, we report the calculated interactions for each quadruplet for consistency and clarity.
    • -1) in stacking interactions that should be the same (i.e., two intrastrand T:xA interactions in (TxA):(xAT) sequence). These differences likely arise because of slight errors in our method for finding the center of the base pairs. Since none of the differences are significant enough to detract from our main conclusions, we report the calculated interactions for each quadruplet for consistency and clarity.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.